syzbot


panic: mld_change_state: bad ifp

Status: upstream: reported on 2025/03/02 08:40
Reported-by: syzbot+8955dd03ab6035610d45@syzkaller.appspotmail.com
First crash: 324d, last: 3d08h

Sample crash report:
panic: mld_change_state: bad ifp
cpuid = 1
time = 19
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe00571f9f30
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe00571fa090
vpanic() at vpanic+0x257/frame 0xfffffe00571fa250
panic() at panic+0xb5/frame 0xfffffe00571fa310
mld_change_state() at mld_change_state+0x10a0/frame 0xfffffe00571fa4b0
in6_leavegroup_locked() at in6_leavegroup_locked+0x17b/frame 0xfffffe00571fa5d0
ip6_setmoptions() at ip6_setmoptions+0x24d7/frame 0xfffffe00571fadf0
ip6_ctloutput() at ip6_ctloutput+0x1400/frame 0xfffffe00571fb870
udp_ctloutput() at udp_ctloutput+0x21b/frame 0xfffffe00571fb950
sosetopt() at sosetopt+0x236/frame 0xfffffe00571fbb50
kern_setsockopt() at kern_setsockopt+0x2b0/frame 0xfffffe00571fbcc0
sys_setsockopt() at sys_setsockopt+0x77/frame 0xfffffe00571fbd10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe00571fbf30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00571fbf30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a817a, rsp = 0x825132f08, rbp = 0x825132f80 ---
KDB: enter: panic
[ thread pid 1283 tid 100496 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x2587a77(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe0073600000
rdx                    0x7ffff
rbx         0xffffffff8283c160  .str.27
rsp         0xfffffe00571fa070
rbp         0xfffffe00571fa090
rsi                    0x80001
rdi         0xffffffff81664139  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe0058b4ecd0
r12         0xfffffe0058b4e780
r13         0xfffffffffffffffd
r14         0xffffffff8283c160  .str.27
r15                          0
rip         0xffffffff8164d41e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x2587a77(%rip)
db> show proc
Process 1283 (syz-executor) at 0xfffffe0058ad7ab0:
 state: NORMAL
 uid: 0 gid: 0 supp gids: 0, 5
 parent: pid 765 at 0xfffffe0058aab018
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: ./syz-executor exec
 reaper: 0xfffffe0007809010 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0058ab6920
   (map 0xfffffe0058ab6920)
   (map.pmap 0xfffffe0058ab69c0)
   (pmap 0xfffffe0058ab6a30)
 threads: 2
100103                   RunQ                                syz-executor
100496                   Run     CPU 1                       syz-executor
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1286  1280  1280     0  RV                                  syz-executor
 1285     0     0     0  DL      mdwait  0xfffffe006bb01000  [md0]
 1283   765   765     0  R       (threaded)                  syz-executor
100103                   RunQ                                syz-executor
100496                   Run     CPU 1                       syz-executor
 1282   764   764     0  R       (threaded)                  syz-executor
100099                   RunQ                                syz-executor
100495                   RunQ                                syz-executor
100497                   RunQ                                syz-executor
 1281  1180  1180     0  R       (threaded)                  syz-executor
100120                   RunQ                                syz-executor
100493                   S       uwait   0xfffffe0078729f00  syz-executor
100494                   S       uwait   0xfffffe0078729b00  syz-executor
 1280   762  1280     0  D       ppwait  0xfffffe0058a04fc0  syz-executor
 1244     1  1180     0  S       uwait   0xfffffe006eae6300  syz-executor
 1241     0     0     0  DL      (threaded)                  [KTLS]
100161                   D       -       0xfffffe0075b56a00  [thr_0]
100440                   D       -       0xfffffe0075b56a80  [thr_1]
100441                   D       -       0xffffffff83cd78e8  [reclaim_0]
 1234     1   765     0  S       uwait   0xfffffe00585f2f00  syz-executor
 1233     1   765     0  S       uwait   0xfffffe00585f3700  syz-executor
 1180   762  1180     0  S       nanslp  0xffffffff83bb5f41  syz-executor
 1174     1   765 60928  S       uwait   0xfffffe00585f2e00  syz-executor
 1047  1041  1047     0  Ss      select  0xfffffe0078742940  dhclient
 1044     1  1044     0  Ss      select  0xfffffe0078742640  dhclient
 1041  1032   423    65  S       select  0xfffffe0078742cc0  dhclient
 1032   423   423     0  S       wait    0xfffffe0058af5ab0  sh
  932     1   764     0  S       uwait   0xfffffe00585f3c00  syz-executor
  930     1   764     0  S       uwait   0xfffffe00585f3800  syz-executor
  894     1   764     0  SV      uwait   0xfffffe00585f1200  syz-executor
  880     0     0     0  DL      (threaded)                  [so_splice]
100113                   D       -       0xfffffe0007a95580  [thr_0]
100162                   D       -       0xfffffe0007a955c0  [thr_1]
  826     0     0     0  DL      aiordy  0xfffffe0058ada570  [aiod4]
  825     0     0     0  DL      aiordy  0xfffffe0058b0aac0  [aiod3]
  824     0     0     0  DL      aiordy  0xfffffe0058ad9568  [aiod2]
  823     0     0     0  DL      aiordy  0xfffffe0058ad9ac0  [aiod1]
  765   762   765     0  S       nanslp  0xffffffff83bb5f41  syz-executor
  764   762   764     0  S       nanslp  0xffffffff83bb5f41  syz-executor
  762   760   760     0  S       select  0xfffffe0059a190c0  syz-executor
  760   758   760     0  Ss      sigsusp 0xfffffe0058af8620  csh
  758     1   758     0  Ss      select  0xfffffe0059a05ec0  sshd
  747     1   747     0  Ss+     ttyin   0xfffffe005422dcb0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe005994e8b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe005994f0b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe005994f8b0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe0007bf80b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe0007bf88b0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe0007bf90b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe0007bf98b0  getty
  739     1   739     0  Ss+     ttyin   0xfffffe0007bfa0b0  getty
  737     1    17     0  S+      piperd  0xfffffe0059bb78a0  logger
  736   735    17     0  S+      nanslp  0xffffffff83bb5f41  sleep
  735     1    17     0  S+      wait    0xfffffe0058ad8008  sh
  494     1   494     0  Ss      select  0xfffffe0059a1a040  syslogd
  423     1   423     0  Ss      wait    0xfffffe0058aaa568  devd
   16     0     0     0  DL      syncer  0xffffffff83ce3ae0  [syncer]
   15     0     0     0  DL      vlruwt  0xfffffe000780a018  [vnlru]
   14     0     0     0  RL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83ce2020  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100094                   Run     CPU 0                       [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d23380  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83d09448  [dom0]
100080                   D       launds  0xffffffff83d09454  [laundry: dom0]
100081                   D       umarcl  0xffffffff81e37c30  [uma]
    7     0     0     0  DL      -       0xffffffff8392e510  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff846f8f80  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff844be700  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff838f8340  [doneq0]
100046                   D       -       0xffffffff838f82c0  [async]
100075                   D       -       0xffffffff838f8140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100042                   D       crypto_ 0xffffffff83d04ce0  [crypto]
100043                   D       crypto_ 0xfffffe00077af830  [crypto returns 0]
100044                   D       crypto_ 0xfffffe00077af880  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b5e520  [g_event]
100038                   D       -       0xffffffff83b5e540  [g_up]
100039                   D       -       0xffffffff83b5e560  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100031                   I                                   [clock (0)]
100032                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   I                                   [swi1: netisr 0]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   I                                   [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   I                                   [irq31: virtio_pci1]
100055                   I                                   [irq32: virtio_pci1]
100060                   I                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0007809010  [init]
   10     0     0     0  DL      audit_w 0xffffffff83d05780  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       -       0xffffffff84c5dff0  [kernel]
100005                   D       -       0xfffffe00077cb000  [softirq_0]
100006                   D       -       0xfffffe00077cae00  [softirq_1]
100007                   D       -       0xfffffe00077cad00  [if_io_tqg_0]
100008                   D       -       0xfffffe00077cac00  [if_io_tqg_1]
100009                   D       -       0xfffffe00077cab00  [if_config_tqg_0]
100010                   D       -       0xfffffe00077caa00  [kqueue_ctx taskq]
100011                   D       -       0xfffffe00077ca900  [jail_remove taskq]
100012                   D       -       0xfffffe00077ca800  [bus taskq]
100015                   D       -       0xfffffe00077ca500  [thread taskq]
100017                   D       -       0xfffffe00077ca300  [aiod_kick taskq]
100018                   D       -       0xfffffe00077ca200  [deferred_unmount ta]
100019                   D       -       0xfffffe00077ca100  [inm_free taskq]
100020                   D       -       0xfffffe00077ca000  [in6m_free taskq]
100021                   D       -       0xfffffe00077c9e00  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe00077c9b00  [firmware taskq]
100040                   D       -       0xfffffe00077c9100  [crypto_0]
100041                   D       -       0xfffffe00077c9100  [crypto_1]
100056                   D       -       0xfffffe00077c8900  [vtnet0 rxq 0]
100057                   D       -       0xfffffe00077c8800  [vtnet0 txq 0]
100058                   D       -       0xfffffe00077c8700  [vtnet0 rxq 1]
100059                   D       -       0xfffffe00077c8600  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe005800d900  [virtio_balloon]
100065                   D       -       0xffffffff82840841  [deadlkres]
100069                   D       -       0xfffffe00077c8b00  [acpi_task_0]
100070                   D       -       0xfffffe00077c8b00  [acpi_task_1]
100071                   D       -       0xfffffe00077c8b00  [acpi_task_2]
100073                   D       -       0xfffffe00077cb100  [mca taskq]
100074                   D       -       0xfffffe00077c8a00  [CAM taskq]
100076                   D       -       0xfffffe00077c8d00  [ipsec_offload]
100188                   D       -       0xfffffe0059a74400  [system_taskq_0]
100189                   D       -       0xfffffe0059a74400  [system_taskq_1]
100190                   D       -       0xfffffe0059a6ed00  [system_delay_taskq_]
100191                   D       -       0xfffffe0059a6ed00  [system_delay_taskq_]
100192                   D       -       0xfffffe0059a74100  [zvol_tq-0_0]
100193                   D       -       0xfffffe0059a74100  [zvol_tq-0_1]
100194                   D       -       0xfffffe0059a74100  [zvol_tq-0_2]
100195                   D       -       0xfffffe0059a74100  [zvol_tq-0_3]
100196                   D       -       0xfffffe0059a74100  [zvol_tq-0_4]
100197                   D       -       0xfffffe0059a74100  [zvol_tq-0_5]
100198                   D       -       0xfffffe0059a74100  [zvol_tq-0_6]
100199                   D       -       0xfffffe0059a74100  [zvol_tq-0_7]
100200                   D       -       0xfffffe0059a74100  [zvol_tq-0_8]
100201                   D       -       0xfffffe0059a74100  [zvol_tq-0_9]
100202                   D       -       0xfffffe0059a74100  [zvol_tq-0_10]
100203                   D       -       0xfffffe0059a74100  [zvol_tq-0_11]
100204                   D       -       0xfffffe0059a74100  [zvol_tq-0_12]
100205                   D       -       0xfffffe0059a74100  [zvol_tq-0_13]
100206                   D       -       0xfffffe0059a74100  [zvol_tq-0_14]
100207                   D       -       0xfffffe0059a74100  [zvol_tq-0_15]
100208                   D       -       0xfffffe0059a74100  [zvol_tq-0_16]
100209                   D       -       0xfffffe0059a74100  [zvol_tq-0_17]
100210                   D       -       0xfffffe0059a74100  [zvol_tq-0_18]
100211                   D       -       0xfffffe0059a74100  [zvol_tq-0_19]
100212                   D       -       0xfffffe0059a74100  [zvol_tq-0_20]
100213                   D       -       0xfffffe0059a74100  [zvol_tq-0_21]
100214                   D       -       0xfffffe0059a74100  [zvol_tq-0_22]
100215                   D       -       0xfffffe0059a74100  [zvol_tq-0_23]
100216                   D       -       0xfffffe0059a74100  [zvol_tq-0_24]
100217                   D       -       0xfffffe0059a74100  [zvol_tq-0_25]
100218                   D       -       0xfffffe0059a74100  [zvol_tq-0_26]
100219                   D       -       0xfffffe0059a74100  [zvol_tq-0_27]
100220                   D       -       0xfffffe0059a74100  [zvol_tq-0_28]
100221                   D       -       0xfffffe0059a74100  [zvol_tq-0_29]
100222                   D       -       0xfffffe0059a74100  [zvol_tq-0_30]
100223                   D       -       0xfffffe0059a74100  [zvol_tq-0_31]
100224                   D       -       0xfffffe00077c7900  [arc_prune]
100225                   D       -       0xfffffe0059a6eb00  [arc_flush_0]
100226                   D       -       0xfffffe0059a6eb00  [arc_flush_1]
100241                   D       -       0xfffffe0059a6de00  [dbu_evict]
100250                   D       -       0xfffffe00077cbc00  [z_vdev_file_0]
100251                   D       -       0xfffffe00077cbc00  [z_vdev_file_1]
100252                   D       -       0xfffffe00077cbc00  [z_vdev_file_2]
100253                   D       -       0xfffffe00077cbc00  [z_vdev_file_3]
100254                   D       -       0xfffffe00077cbc00  [z_vdev_file_4]
100255                   D       -       0xfffffe00077cbc00  [z_vdev_file_5]
100256                   D       -       0xfffffe00077cbc00  [z_vdev_file_6]
100257                   D       -       0xfffffe00077cbc00  [z_vdev_file_7]
100258                   D       -       0xfffffe00077cbc00  [z_vdev_file_8]
100259                   D       -       0xfffffe00077cbc00  [z_vdev_file_9]
100260                   D       -       0xfffffe00077cbc00  [z_vdev_file_10]
100261                   D       -       0xfffffe00077cbc00  [z_vdev_file_11]
100262                   D       -       0xfffffe00077cbc00  [z_vdev_file_12]
100263                   D       -       0xfffffe00077cbc00  [z_vdev_file_13]
100264                   D       -       0xfffffe00077cbc00  [z_vdev_file_14]
100265                   D       -       0xfffffe00077cbc00  [z_vdev_file_15]
100272                   D       -       0xfffffe0059a6e800  [zfsvfs]
db> show all locks
Process 1283 (syz-executor) thread 0xfffffe0058b4e780 (100496)
exclusive sleep mutex in6_multi_list_mtx (in6_multi_list_mtx) r = 0 (0xffffffff83cfffe0) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:1386
exclusive rw udpinp (udpinp) r = 0 (0xfffffe006b8948e0) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:1588
exclusive sx in6_multi_sx (in6_multi_sx) r = 0 (0xffffffff83d00020) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:2343
Process 1282 (syz-executor) thread 0xfffffe0058b56780 (100497)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0007d07740) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:4024
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe006eac9750) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_extattr.c:188
Process 14 (bufdaemon) thread 0xfffffe0058ac2000 (100094)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0007c4ffe0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:4024
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          410        12498K          560
            devbuf         8283         7252K         8310
          tcp_hpts            8         4865K            8
           solaris          112         3065K          203
         sysctloid        44971         2642K        45083
             vtbuf           24         1968K           46
              kobj          337         1348K          510
            newblk          646         1186K         1591
          vfscache            3         1025K            3
               pcb           26          669K          205
          inodedep          119          557K          373
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            5          272K            8
           subproc          138          270K         1366
         vnet_data            2          224K            2
          acpitask            1          224K            1
          filedesc           28          217K          801
            KTRACE          102          201K         3886
            acpica         1674          184K        56977
           pagedep           73          146K          219
           tidhash            3          141K            3
               LRO           78          141K          134
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          108          108K          209
               sem            4          106K            4
        gtaskqueue           18           98K           18
               bus         1015           83K         5167
          mtx_pool            3           74K            3
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          533           67K          533
       ddb_capture            1           64K            1
              umtx          432           54K          432
           kdtrace          257           53K         1787
          routetbl         1266           52K         4056
         hostcache            1           32K            1
               shm            1           32K            3
            DEVFS3          128           32K          166
               msg            4           30K            4
            kbdmux            6           28K            6
              temp           33           21K         3475
        DEVFS_RULE           56           20K           56
        kstat_data           19           19K           19
            ifaddr           70           19K          326
               BPF           15           19K           66
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           90           15K           90
            bus-sc           34           15K         1690
      eventhandler          172           14K          172
           lltable           43           13K          269
              kenv           95           12K           95
              cred           28           12K          230
              GEOM           54           12K          461
         CAM queue            5           11K         1528
       ether_multi          124           10K          951
         taskqueue           93           10K          108
              rman           75           10K          430
             mkdir           74           10K          408
              ksem            4           10K           10
            diradd           72            9K          319
               rpc            8            9K            8
         bmsafemap            4            9K          344
         newdirblk           68            9K          204
           devstat            4            9K            4
              UART           12            9K           12
             shmfd            1            8K            7
       pfs_vncache            1            8K            1
            plimit           21            8K          550
            dirrem           30            8K          241
     audit_evclass          240            8K          306
         in6_multi           56            8K          346
               UMA          341            7K          341
             ifnet            7            7K           35
            sglist            6            7K            6
           CAM DEV            3            6K          510
         pfs_nodes           22            6K           22
          pf_ifnet           14            6K          159
       ufs_dirhash           24            5K           24
          freefile           35            5K          210
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
           md_disk            1            4K            3
             evdev            4            4K            4
            kqueue           61            4K         1331
           pwddesc           60            4K         1339
           acpisem           28            4K           28
            DEVFSP           47            3K          366
          freework           12            3K          269
          terminal           11            3K           11
          freeblks           10            3K          187
           uidinfo            5            3K           17
           acpidev           20            3K           20
         proc-args           79            3K         3145
             selfd           38            3K        94757
             hhook            8            3K           10
          kcovinfo           36            3K          288
           netlink            2            3K          614
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1332       18914       0     254   39534592        0
        malloc-384    384    8210      40        8255       0      30    3168000        0
              mbuf    256    8608    1309       24771       0     254    2538752        0
        malloc-128    128   14836     168       16726       0     126    1920512        0
          BUF TRIE    152     340   11464        1269       0      62    1794208        0
      mbuf_cluster   2048     508     254         508       0     254    1560576        0
       malloc-4096   4096     361       3         555       0       2    1490944        0
           tcp_log    416    2145    1419        6793       0     254    1482624        0
         malloc-64     64    4898   15703      101429       0     254    1318464        0
       UMA Slabs 0    112   11458      20       11458       0     126    1285536        0
        RADIX NODE    152    7718     727       62874       0      62    1283640        0
         vmem btag     56   18079     104       18079       0     254    1018248        0
      malloc-65536  65536      12       1          16       0       1     851968        0
         FFS inode   1168     592      24         806       0       8     719488        0
         sctp_asoc   2256       0     255           4       0     254     575280        0
            socket   1024      28     480        2133       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2664       0     182           0       0       2     484848        0
            DEVCTL   1024     359     101         490       0       0     471040        0
        256 Bucket   2048     197      11        1547       0       8     425984        0
            THREAD   1860     196      20         497       0       8     401760        0
      malloc-65536  65536       4       1           5       0       1     327680        0
         VM OBJECT    248    1092     220       21250       0      62     325376        0
             VNODE    440     632      88         876       0      30     316800        0
         malloc-16     16   18428     322       18685       0     254     300000        0
           sctp_ep   1152       0     259          31       0     254     298368        0
         malloc-32     32    8405     289        8550       0     254     278208        0
       malloc-4096   4096      61       5        1290       0       2     270336        0
zio_buf_comb_262144 262144       0       1          15       0       1     262144        0
        malloc-256    256     866     139        2497       0      62     257280        0
      malloc-16384  16384      13       2         574       0       1     245760        0
         UMA Zones    768     313       1         313       0      16     241152        0
       malloc-2048   2048     103       9         133       0       8     229376        0
      malloc-65536  65536       1       2         111       0       1     196608        0
      malloc-65536  65536       0       3          93       0       1     196608        0
      malloc-32768  32768       0       6          90       0       1     196608        0
        sctp_raddr    736       0     264           4       0     254     194304        0
     FPU_save_area    832     198      27         686       0      16     187200        0
        malloc-128    128    1235     160       26864       0     126     178560        0
       FFS2 dinode    256     592      98         806       0      62     176640        0
            lkpimm     56       1    3095           1       0     254     173376        0
         MAP ENTRY     96    1172     592       71443       0     126     169344        0
             unpcb    320       9     507        1392       0     254     165120        0
       malloc-1024   1024     143      17         245       0      16     163840        0
       malloc-2048   2048       7      65        1197       0       8     147456        0
       S VFS Cache    104    1072     332        1322       0     126     146016        0
zio_buf_comb_131072 131072       0       1           1       0       1     131072        0
      malloc-32768  32768       4       0           4       0       1     131072        0
       mbuf_packet    256       2     506         547       0     254     130048        0
         tcp_inpcb   1304       6      84         162       0       8     117360        0
          ksiginfo    112      56     988         117       0     126     116928        0
          UMA Kegs    384     299       4         299       0      30     116352        0
             g_bio    440       0     243        8124       0      30     106920        0
              PROC   1368      59      18        1288       0       8     105336        0
        malloc-384    384     197      73         453       0      30     103680        0
        malloc-128    128     595     180        4264       0     126      99200        0
        malloc-128    128     498     277        2100       0     126      99200        0
      malloc-32768  32768       2       1           3       0       1      98304        0
      malloc-32768  32768       2       1          12       0       1      98304        0
       malloc-2048   2048      38      10          67       0       8      98304        0
        malloc-256    256     197     178        1241       0      62      96000        0
       malloc-8192   8192       9       2          31       0       1      90112        0
        128 Bucket   1024      55      28         285       0      16      84992        0
         filedesc0   1072      60      17        1339       0       8      82544        0
        malloc-256    256     259      56         658       0      62      80640        0
       malloc-8192   8192       5       4          45       0       1      73728        0
         malloc-64     64     599     472        2158       0     254      68544        0
        malloc-128    128     338     189         515       0     126      67456        0
      malloc-65536  65536       0       1           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
         64 Bucket    512      92      36       11122       0      30      65536        0
         malloc-64     64     474     345         725       0     254      52416        0
         malloc-64     64     415     404        1792       0     254      52416        0
        malloc-256    256      41     154         198       0      62      49920        0
         32 Bucket    256      73     122        1479       0      62      49920        0
zio_data_buf_16384  16384       0       3           9       0       1      49152        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       19622       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-4096   4096       6       6         794       0       2      49152        0
       malloc-2048   2048       8      16          56       0       8      49152        0
       malloc-1024   1024       7      41         571       0      16      49152        0
           pcpu-64     64     508     260         508       0     254      49152        0
            pcpu-8      8    5317     827       10037       0     254      49152        0
            da_ccb    544       0      84        2208       0      16      45696        0
          syncache    168       0     264           3       0     254      44352        0
            vnpbuf   2664       0      16           4       0      16      42624        0
       malloc-8192   8192       4       1          86       0       1      40960        0
           VMSPACE    584      36      34        1263       0      16      40880        0
              pipe    736      19      36         443       0      16      40480        0
        sctp_chunk    152       0     260           2       0     254      39520        0
         udp_inpcb    408       7      83         403       0      30      36720        0
         malloc-64     64      69     498         354       0     254      36288        0
         malloc-64     64      32     535       15557       0     254      36288        0
         malloc-64     64      75     492        2126       0     254      36288        0
         malloc-64     64     103     464         825       0     254      36288        0
         16 Bucket    144      94     158         460       0      62      36288        0
       tcp_bbr_map    128       0     279           5       0     126      35712        0
        malloc-128    128       6     273          82       0     126      35712        0
        malloc-128    128     105     174         679       0     126      35712        0
        malloc-128    128     177     102         326       0     126      35712        0
     routing nhops    256      23     112         149       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      52      38          55       0      30      34560        0
        malloc-384    384      60      30         792       0      30      34560        0
        malloc-384    384      58      32         158       0      30      34560        0
        malloc-256    256       6     129         817       0      62      34560        0
        malloc-256    256      35     100        1589       0      62      34560        0
        malloc-256    256      54      81         693       0      62      34560        0
        malloc-256    256      14     121         394       0      62      34560        0
         TURNSTILE    136     217      35         217       0      62      34272        0
             ripcb    376       5      85          40       0      30      33840        0
     zio_buf_16384  16384       0       2          10       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           4       0       1      32768        0
       malloc-4096   4096       5       3          17       0       2      32768        0
       malloc-2048   2048       7       9         205       0       8      32768        0
       malloc-2048   2048       0      16          91       0       8      32768        0
       malloc-2048   2048       6      10         202       0       8      32768        0
       malloc-1024   1024       2      30           8       0      16      32768        0
       malloc-1024   1024      15      17          44       0      16      32768        0
       malloc-1024   1024      17      15          38       0      16      32768        0
       malloc-1024   1024       3      29         151       0      16      32768        0
       malloc-1024   1024      17      15          22       0      16      32768        0
       malloc-1024   1024       2      30        1796       0      16      32768        0
        malloc-512    512       4      60          14       0      30      32768        0
        malloc-512    512      12      52          23       0      30      32768        0
        malloc-512    512       1      63         117       0      30      32768        0
        malloc-512    512       3      61         250       0      30      32768        0
        malloc-512    512      11      53          78       0      30      32768        0
        malloc-512    512       3      61           8       0      30      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
             Files     80     162     238       11482       0     126      32000        0
            clpbuf   2664       0      12          65       0       4      31968        0
              PGRP    120      21     243         101       0     126      31680        0
        sctp_laddr     48       0     588         125       0     254      28224        0
         malloc-32     32     333     549        3408       0     254      28224        0
          4 Bucket     48       7     581          10       0     254      28224        0
               AIO    208       0     133          23       0      62      27664        0
            cpuset    200       8     120          10       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       1       2           3       0       1      24576        0
       malloc-4096   4096       3       3           8       0       2      24576        0
       malloc-4096   4096       3       3         497       0       2      24576        0
    ertt_txseginfo     40       0     606         364       0     254      24240        0
               PWD     40      20     586         280       0     254      24240        0
           rtentry    168      26     118         149       0      62      24192        0
          8 Bucket     80      61     239         408       0     126      24000        0
        malloc-384    384       2      58         416       0      30      23040        0
        malloc-384    384      16      44         167       0      30      23040        0
      tcp_rack_pcb   1088       0      21           4       0       8      22848        0
       Mountpoints   2816       2       6           3       0       4      22528        0
        SLEEPQUEUE     88     217      39         217       0     126      22528        0
         hostcache     64       3     312           3       0     254      20160        0
              ertt     72       5     275         162       0     126      20160        0
         malloc-32     32       7     623         234       0     254      20160        0
         malloc-32     32      95     535         119       0     254      20160        0
         malloc-32     32      57     573        1242       0     254      20160        0
         malloc-32     32      71     559         255       0     254      20160        0
         malloc-32     32     101     529        3087       0     254      20160        0
         malloc-32     32      62     568        1851       0     254      20160        0
          2 Bucket     32      76     554         436       0     254      20160        0
             KNOTE    160       0     125          38       0      62      20000        0
      tcp_rack_map    128       0     155           7       0     126      19840        0
             AIOCB    552       0      35          37       0      16      19320        0
      ktls_session    256       0      75           1       0      62      19200        0
       L VFS Cache    320       0      60          11       0      30      19200        0
              vmem   1856       2       7           2       0       8      16704        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       1       3           2       0       2      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
        malloc-512    512       2      30           3       0      30      16384        0
        malloc-512    512       0      32          15       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
       tcp_bbr_pcb    896       0      18           3       0      16      16128        0
          rl_entry     48       4     332           5       0     254      16128        0
   tcp_log_id_node    120       1     131           1       0     126      15840        0
              kenv    258      17      43        1084       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
     udplite_inpcb    408       1      35           8       0      30      14688        0
        SMR SHARED     24       8     503           8       0     254      12264        0
arc_buf_hdr_t_full    368       4      29           4       0      30      12144        0
 tcp_log_id_bucket    176       1      68           1       0      62      12144        0
         malloc-16     16      38     712          89       0     254      12000        0
         malloc-16     16      35     715         191       0     254      12000        0
         malloc-16     16      41     709        1483       0     254      12000        0
         malloc-16     16     206     544        3107       0     254      12000        0
         malloc-16     16      39     711          87       0     254      12000        0
         malloc-16     16     348     402       28678       0     254      12000        0
         malloc-16     16      38     712         342       0     254      12000        0
           cryptop    280       0      42           9       0      30      11760        0
            itimer    352       0      33           1       0      30      11616        0
            splice    184       0      63           1       0      62      11592        0
        malloc-384    384       6      24           7       0      30      11520        0
            AIOLIO    272       0      42           4       0      30      11424        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           4       0       2       8192        0
           pcpu-16     16       8     504           8       0     254       8192        0
      vtnet_tx_hdr     24       0     334        1716       0     254       8016        0
       UMA Slabs 1    176      11      11          11       0      62       3872        0
        KMAP ENTRY     96      15      24          26       0       0       3744        0
   zfs_znode_cache    456       0       0           0       0      30          0        0
zap_attr_long_cache   1056       0       0           0       0       8          0        0
     zap_name_long   1096       0       0           0       0       8          0        0
    zap_attr_cache    288       0       0           0       0      30          0        0
          zap_name    328       0       0           0       0      30          0        0
       sio_cache_2    168       0       0           0       0      62          0        0
       sio_cache_1    152       0       0           0       0      62          0        0
       sio_cache_0    136       0       0           0       0      62          0        0
     zil_zcw_cache     80       0       0           0       0     126          0        0
     zil_lwb_cache    376       0       0           0       0      30          0        0
dbuf_dirty_record_t    376       0       0           0       0      30          0        0
    dmu_buf_impl_t    376       0       0           0       0      30          0        0
         arc_buf_t     32       0       0           0       0     254          0        0
arc_buf_hdr_t_l2only     96       0       0           0       0     126          0        0
           dnode_t    952       0       0           0       0      16          0        0
          sa_cache    272       0       0           0       0      30          0        0
         abd_chunk   4096       0       0           0       0       2          0        0
zio_buf_comb_16777216 16777216       0       0           0       0       1          0        0
zio_buf_comb_12582912 12582912       0       0           0       0       1          0        0
zio_buf_comb_8388608 8388608       0       0           0       0       1          0        0
zio_buf_comb_6291456 6291456       0       0           0       0       1          0        0
zio_buf_comb_4194304 4194304       0       0           0       0       1          0        0
zio_buf_comb_3145728 3145728       0       0           0       0       1          0        0
zio_buf_comb_2097152 2097152       0       0           0       0       1          0        0
zio_buf_comb_1572864 1572864       0       0           0       0       1          0        0
zio_buf_comb_1048576 1048576       0       0           0       0       1          0        0
zio_buf_comb_786432 786432       0       0           0       0       1          0        0
zio_buf_comb_524288 524288       0       0           0       0       1          0        0
zio_buf_comb_393216 393216       0       0           0       0       1          0        0
zio_buf_comb_196608 196608       0       0           0       0       1          0        0
zio_buf_comb_98304  98304       0       0           0       0       1          0        0
zio_buf_comb_65536  65536       0       0           0       0       1          0        0
zio_buf_comb_49152  49152       0       0           0       0       1          0        0
zio_buf_comb_32768  32768       0       0           0       0       1          0        0
zio_buf_comb_24576  24576       0       0           0       0       1          0        0
zio_data_buf_12288  12288       0       0           0       0       1          0        0
     zio_buf_12288  12288       0       0           0       0       1          0        0
 zio_data_buf_8192   8192       0       0           0       0       1          0        0
      zio_buf_8192   8192       0       0           0       0       1          0        0
 zio_data_buf_6144   6144       0       0           0       0       1          0        0
      zio_buf_6144   6144       0       0           0       0       1          0        0
 zio_data_buf_4096   4096       0       0           0       0       2          0        0
      zio_buf_4096   4096       0       0           0       0       2          0        0
 zio_data_buf_3072   3072       0       0           0       0       4          0        0
      zio_buf_3072   3072       0       0           0       0       4          0        0
 zio_data_buf_2048   2048       0       0           0       0       8          0        0
      zio_buf_2048   2048       0       0           0       0       8          0        0
 zio_data_buf_1536   1536       0       0           0       0       8          0        0
      zio_buf_1536   1536       0       0           0       0       8          0        0
 zio_data_buf_1024   1024       0       0           0       0      16          0        0
      zio_buf_1024   1024       0       0           0       0      16          0        0
  zio_data_buf_512    512       0       0           0       0      30          0        0
       zio_buf_512    512       0       0           0       0      30          0        0
    zio_link_cache     48       0       0           0       0     254          0        0
         zio_cache   1152       0       0           0       0       8          0        0
ddt_log_entry_trad_cache    328       0       0           0       0      30          0        0
ddt_log_entry_flat_cache    144       0       0           0       0      62          0        0
ddt_entry_trad_cache    368       0       0           0       0      30          0        0
ddt_entry_flat_cache    184       0       0           0       0      62          0        0
         ddt_cache  29376       0       0           0       0       1          0        0
   brt_entry_cache    168       0       0           0       0      62          0        0
metaslab_alloc_trace_cache     72       0       0           0       0     126          0        0
zfs_btree_leaf_cache   4096       0       0           0       0       2          0        0
   reference_cache     48       0       0           0       0     254          0        0
        taskq_zone    160       0       0           0       0      62          0        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    152       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
  pf fragment node     72       0       0           0       0     126          0        0
          pf frags    232       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0     254          0        0
pf table entry counters     64       0       0           0       0     254          0        0
pf Ethernet anchors   1240       0       0           0       0      64          0        0
        pf anchors   1664       0       0           0       0      64          0        0
   pf UDP mappings    104       0       0           0       0     126          0        0
   pf source nodes    152       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    384       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    240       0       0           0       0      62          0        0
           NCLNODE    608       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  linux_dma_object     32       0       0           0       0     254          0        0
  linux_dma_pctrie    152       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    112       0       0           0       0     126          0        0
            skbuff   1808       0       0           0       0       8          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
           nfspbuf   2664       0       0           0       0       4          0        0
            swwbuf   2664       0       0           0       0       2          0        0
            swrbuf   2664       0       0           0       0       4          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    152       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg     88       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> show all tcpcbs/bl

Crashes (23):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/17 01:53 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/11 03:55 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/11 03:28 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/05 06:29 freebsd-src a3394b6a23fb e3fbc05e console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/04 12:39 freebsd-src a3394b6a23fb e3fbc05e console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/12/31 00:53 freebsd-src a3394b6a23fb d32f762a console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/12/13 11:43 freebsd-src c42bce238abd a066d2bc console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/11/29 18:12 freebsd-src 02b72b1540bf 01c07bfe console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/11/02 07:02 freebsd-src b473bb274cef 2c50b6a9 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/09/09 09:29 freebsd-src c04fe26aa2f7 d291dd2d console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/09/06 19:39 freebsd-src c04fe26aa2f7 d291dd2d console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/30 16:29 freebsd-src c04fe26aa2f7 807a3b61 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/22 19:39 freebsd-src c04fe26aa2f7 bf27483f console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/02 22:27 freebsd-src d1095367eb51 8e9d1dc1 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/01 16:33 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/07/16 11:43 freebsd-src b2bf651a797b c118d736 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/07/11 06:54 freebsd-src e8019a159185 3cda49cf console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/05/17 17:13 freebsd-src ee84b4e2fdf0 f41472b0 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/07/14 02:30 freebsd-src 2cfd6342ac84 3cda49cf console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/06/12 20:49 freebsd-src d8b51259caee 98683f8f console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/03/29 23:22 freebsd-src 27f70efebf1d d3999433 console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/03/06 12:58 freebsd-src 23f453ae34c2 831e3629 console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/03/02 08:39 freebsd-src e74a3c75855f c3901742 console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
* Struck through repros no longer work on HEAD.